Apparatus for stowing and launching ships&#39; boats.



, AQR. NYBOERL APPARATUS FOR STOWING AND LAUNGHING SHIPS BOATS APPLICATION FILED JAN. 81, 1911. RENEWED MAB. 4, 1912.

4 SHEETS-SHEET 1.

19i {we on a o A. R. NYBOER. APPARATUS FOR STOWING AND LAUNGHING SHIPS BOATS. APPLICATION FILED JAN.3 1,1911. RENEWED MAR. 4,1912.

1,0%O,741 Patented Oct. 8, 1912.

4 BHEETS-SHEET 2. V

A. R. N'YBOER. APPARATUS FOR STOWING AND LAUNOHING SHIPS BOATS.

APPLIOATION FILED JAN.31, 1911. RENEWED MAR. 4, 1012.

1,040,741 Patented Oct. 8, 1912.

' 4 SHEETS-SHEET a.

as W z 4 ftomae 6 A. R. NYBOER. APPARATUS FOR STOWING AND LAUNCHING SHIPS BOATS.

4 BHEBTS-SHBBT 4.

4, 1912. Patented Oct. 8, 1912.

QHIo'awz WW 1 Ag I 7 APPLICATION FILED JAN.31, 1911. RENEWED MAR. 1,040,741

Uh lflllilll SlATlfEL'l PATENT @l lifltllflo ammo a. arcane. OF EDAM,

NETHERLANDS, ASSIGNOR TO GEORGE H. DIEHL, 53.,

OF NEW YORK. i. Y.

APPARATUS FOR STOWING AND LAUNCHIN'G SHlIPS BOATS.

Specification of Letters Patent.

Patontedflet. 8,2131%.

Application filed January 31, 1911, Serial No. 605,794. Renewed March l, 1912. Serial Ho. 681,613.-

To all whom it may concern:

l e it known that I, Ammo Rm'x'r )Ti'nonu, a subject of the -Queen of the Netherlands, residing in Edam, Netherlands, have invented certain new and useful Improvements in Apparatus for Stowing and Launching Ships Boats, of which the following a specification, reference being had to the ac- 'eompanying drawings, formiin; a part hereof.

This invention has for its object to provide improved means for theslowing and launching of ships boats so that they may be stowed securely when not required for use and may be launched quickly and easily and be let go from the falls, without danger of capsizin The invention is particularly concerned with. the construction of the Chocks or cradle; which is so constructed as to support the boat-properly and as to free the boat instantly when necessary; with the means for operating the usual davits, so that the boat may be swung outboard quickly and easily, .such means being also constructed and arranged with reference to the launching of several boats simultaneously under the control of an ollicer on the bridge: and with the means for detaching: the boat from the. falls, which are soconstruc'ted as to make it impossible to let go at the bow quicker than at the stern.

The invention will be more fully explained hereinafter withreferenco to the ac eonipanying drawings'in which it is illustrated and in which- Figin'e'l is a View in side elevation slime inga portion of a ships rail with a pair of darits and 'a boat restinn in the chocks or cradle, aportion of one side of the boat being broken away to show the releasingdoi'icos. Fig. 2 is a partial top View of the boat, showing some of the details of the boat releasing devices. Fig. 3 a view similar to Fig, lbut showing the choelis or cradle collapsed and the boat outlioa rd at the davits. Fig. -'lis a top View of the parts shown in Figs. 1 and 3, but without the boat. showing in tulllines the davits; and the elioch's or cradle. in the positions which they occupy when the boat resting in the r-hocks, and in dotted lines the positions which the dai'its assume when the boat is swung outboard. Figs. 4''; and ii are detail views, on a larger scale, of some of the now as to free the boat instantly.

proper, (l, at each end of the boat, are mounted upon a traino c which is hinged between the boatgripes being; also indicatet.

and 9 are detail views of the means for 013- crating the davits. Fig. 10 is a top view showing several boats and launching devices therefor adapted to be operated simultaneously.

The boat a, hung by falls b from thodarits c, o, is supported inboard in a cradle which is so constructed that it can he collapsed so The ehochs its upper and lower ends, as at c, and also hinged to the ships'deelc at 'tsrfoot, as at. (2 Each of the t'rame's or supports 0 may be constructed of any suitable n'iaterial and in any suitable manner, but is preferably formed-of rods or bars, as shown particularly in Fina], the rods or bars c of and a of the upper member of the hinged tramo beingsecured at their upper ends to the rigid chock J and secured or pivotally mounted at their lower ends upon a horizontal rod 6 upon or to which the rodsgr o and c" of the lower niemberot' bltdhinged frame are mounted or secured. while the lower ends are pivotally mounted, as at c in suitable brackets secured to the ships deck. However the tfra nie or support may be formed, it is only necessary that it-shall be hinged to the deck at its lower end and hinged in a line between its upper and lower ends that it shall be capable of collapsing, as shown in Fig. 8. The two frames or supports are connected at the hinge lines e by rods f, which may be secured to l/be bars 6 and they are also secured at their upper ends by a rod f, so that the two frames move together. One oi the .t'ranies is connected at its upper end by a rod 7' with a bracket f secured to the derli. and is also connected from its hinge lino/2, that is, from the crossbar (1, by a link l' which is detachably corn nected with the bracket by a pin f. The other frame is connected. from its upper end by a link f with an open hook f soctu'ed to the ships der-li. it will now be on that.

[when the link f" is connected to the ln'a'elcet f by the pin. f the cradle is held from collapsing, and that the two trainee are held from movement at their upper ends in either llI'Wl1fill by the links f and f. It. Vlll also be seen. that when the link j" is detached vertical plane.

- port, the link f from the bracket f the cradle will collapse by its own weight, the centers not being in a As the cradle collapses the upper end of the frame at one end will still remain connected with the deck by the link f as shown in Fig. 3, while the link f a the other end will slip from the hook f. in restoring the cradle to its position of sup- 4 is again engaged with the and the link f with the hook f released and the boat bracket f l in order that the cradle and permitted to collapse gripes 5; released simultaneously therewith, there are mounted in suitable brackets q" providedwith open hooks g to engage the lower ends of the the boat and with an arm 51. The rock shaft 9* is also provided with open books 5.

pee on that side and lever g, which to engage the boat gri with an arm or operat connected by a link .0 'v

h the. am

the rock shaft 9 so that both rock shafts vided with an arm the davits c, c which are mounted,- as

.source of power. so

v that the second davit to? lower of the lever shall be operated simultaneously from the arm or lever 9 The rock shaft 57 is also extended, asshown in Fig. i, to a point opposite the bracket f and is there prowhich is connected by a chain 9 with the pin i so that oscillation of the rock shaft g releases all the boat gripes and disconnects the link f from the bracket ,7" simultaneously, the boat being thereby freed instantly made ready to be swung outboard by the operation of the devils.

The boat hung by the usual falls 3) from usual, davits may be boat gripes g on the corresponding side of {l in pillars 0 a in which the rotated to swing the boat outboard or inboard as the may be. In the present case, however, the two devits are arranged to be operated simultaneously from a single Rotary movement is imparted to one of the davits by suitable 1 means, but preferably by the means herein alt-er described, and the two davits are so connected by a system of links and lovers, receives from the first the'inovement which is necessary to permit the boat to be swung outboard or inboard as the case may be. I As shown in the drawings the davit c has secured thereto, for'operation by hand in the laun of a single boat, a worm gear a, and launching .of several boats at the same a from a common source of power,

controlled from With the worm gear a which is secured to a shaft 0 l mounted in the forked end of a lever '0 I which iszpivoted on the pillar, as at 0. The

worm held in or out of engagement with 1 the bridge, a bevel gear 2 gear 0 1s adapted to mesh t; worm gear bya pin c which. engages 0 end brackets o on the-pillar. The bevel gear 6 is adapted to be engaged by a bevel gear 0 slidably keyed on a shaft 0 and movable lon'gitudinally into or out of engagement with the bevel gear 0 by a forked lever 0 pivoted in the base or the pillar and held in one position or the other by a pin a. Undernormal conditions each bevel gear 0 is in mesh with the corresponding bevel gear a so that all onseveral of the boots may be launched the time, and if itis desired to provide for the launching of only one boat, the gear c is thrown out of mesh with the gear 0 and the worm c is thrown into mesh with the worm wheel 0 so that the davit 0 may be rotated by manual operation of the crank shaft 0 01" course the worm c is held normally out of engagement with the Worm' gear 0"", so that all of the boats may be launched at the some time when the necese sity p The boat itself, when suspended at the davits in position to be secured, constitutes a connection between the davits, but as the davit-s must be capable of being swung outboard or inboard whether the boat is suspended therefrom or not, the connection between the d avits which is formed by the boat itself is to be disregarded. The operative connection between the two davits is constituted two links 71 and i with their co6p-' crating devices. The link it and its coiiperating devices are preferably located just above the railso that they will be cleared by the keel of the boat as it is swung out" board or inboard. The link it has co6per-' sting; therewith an arm pr lever h which is secured to the davit c, and a quadrant lever 79, which is secured to the davit c. The link it is slotted longitudinally, as at it and the slot is enlarged its outer extremity, as at If. In the end of the arm h is secured a stud if which preferably depends below the arm, and, as clearly shown in Fig. 5, has an enlargement 7L and, below the enlargement, is threaded to receive a thumb nut h. The stud itself is of such diameter as to travel in the slot 72, when the end of the link 71. is raised by the nut it into the same plane 'with the smaller portion of the stud, but when the end of the link is, is lowered by the nut 71, and the stud is moved to the end of the slot in the link, the enlargement it of the slot may then drop over the enlargement h of the stud so that the arm and the link then compelled to move together Without relative movement. v

At its other end the link k carries ae'tud 71" which stands above the link andhas, at a little distance above the link, an enlar ement if, and above that receives a nut The quadrant it has in itsouter member oi slot is which is enlarged at its ends, as at 5. and h". The smaller portion of the stud h may travel freely the slot it, while it lib swings tho limit v into he intei'rnuilinln lhe lirsl position ulreznly referred lo,

nlzn'geinonl ol luc slot h q-oacheth is zlli'cmly (lesvairiholh (ho liner-lion lhe iintei'modinle position lo tho oxlamno the owl of lhe iinii is nermitteiil by tho nut l Ji to (ll'OP', the enlzn goment .i of the stnrl may entorr 0110- oi the olher of the terminal LIillll'f i llifiuls in, 12. of the slot l1 so [halt the link (incl the,quadrantWillthen move langolher zinc]. I'Qlzli-LVG movement oo pigcvenlccl. Thn link '21 bonnocla" the limits 0, 1.2" at thoin exn elniliesnml is slo tl'ecl iongimali 1y, am all i: to engage lllosely 1, boll i "i hot oi lfl l (Emit a, Willll: illl l'ho o is j'ii'l'ilnlly connected to tho e21- liy 2 hell 2.

it li assumed that the honl is inboni'ah lxha the manlle' has; been collapsed so 21:; to

lhii lifiilflli, and llm'l; the limit is to he .lilllf 'iherl, 'lllt left hand and of lho linl; h

' all i the nut ii. so that iolnliv Illl)V(t llll' l; l'mniily of lllu ilzlvit o, as

' il l nmni oi the stud in the slot of the link may 'iiailio place. lllw other or right hand and ol the h". c'ls also se l bylluvnut-h SO that the .J :nn wavellrcely in the 5h)! 2, UJL ginin'c The right hznnil end is then ino'vecl 1.0 that oncl o'lf ll a,;esl0t k in thequuclmnl 12 which in to become lhc Ulllllfilai'il. end, ulllil then dropped by lho nut "11 that tho nnlnign moms ii" of aha: stud. clrops into the mini-gt nieml 71" of the slot. Thelongitudinal move lIlLlll oi the link fz/whicsh is permitted by the :slot .6 allows this shifting of the vight hand oncl of tho linl'gto he Qll QClLLl. Rotary movement is now iinpartwfl to the (luvi'l a in n which 15h (lll'enlioin seen from ilhljivo, unlil 'lho ilzivit r n rhes the position imli l'fll liy dolled lines 111 Fig. l hiring; this i'novo monk thostual h" moves in lll allot ll" of lintlink /l, which 'lhol'eloro llllm llil QllPl'l upon lhe clzu'il; v, hill, the liolr. '5 in the upper end slot 1" in tho link i zu-ling: through the link the limit v as (loncrihml. l'hc nul h" is: (lroppod, so l'hutwhen the (hint (r you 1w: lit

in (he lin.

l'jw

(l mos upon the enln rgmnenl stud h.

fvlhen the ll'ilelillt'lllllf} pl'mhon inns boon l 'i'tion. The link i l having llll'!) mil liomll n ongzagwil will] llie snrm ll, as nh'ozuly (le- Stll L and he qnzuli'aml' )1 having been SW1! with the limit r," to the inlormwliulo ponilion, so that the mnneoi'ion of l'ho right lmnrl (lill of the linl; h Willi lho quadrant I hos liRPH mowrl beyond :1 line (onhowling llzo Milan's l'ln ulm'it a will he :-'\\IH.{L; l'hi'ong'h the linl: .1 from he inlonmuliule position to the extreme oullmzml positi n.

tho slot in tho oiul oi the linl; 2' permitting tho necessary changing of lho distance hotnoen the Mills oi tho two (llLV ltl'l (luring llzis operation. l, 'lho relativeinovelnontof lho two (lUCVll'S whioh thus ell'coluil is the znovmnonl imp-lurked lo (luv-its in. and the movement n ol'm'e the usual mil in n ry tho launching of a bout ofllln; boat instill 15 l.

n'ioi'cinonl, one enrl, say-tho how, being first swung liwwmrd until the stern clears the ZLllll' (lilVll, the slum of the boat being then .EHVHIFIQ' on'rlwni'ml and. nsloin until the how mznn clear the 'loi'wmfll limit, when l/hef how is lhon l-M'Ul'lg onlwniwl until the hunt is in post! ion to ho lOWUl'liLl away. i

The oonnoclion oi the link i with tlw quaclanl A, as already ilosurihad, is than whiL-li is required for launching. i l/hon the hunt is; to lie slovnvcl, tho and of the liigll (an "must he shil'led from lheoulhonnl e'infof lilo slot ii, of the qllmlmnt h to the ihlllliul'l oml of tho slot, so than in thR revvrsal o'l the movement of the. (lnvils the right hznnl or after grid-of the link will he swung hoyonil tho conlior line and in the continued nuivemonl of the pa ls the after (lm'il will receive Lhe proper movement through the link 11. r

The operation ol the (law its has been desvrilicd herein as if the required ailjusiment of the link IL .with respect to the quadrant opm'nlion, but it will he understood, ol amoral, llml WllL'll lll') (lllVltH um inlioni' l, the; ii'opw rulnlion ol the link 1: and tho iglnuli'um /1.- is (wlnhlislwi'l. so that when the nr-vmusily zu'isos lhrlzlllill' lllllgf of lhe llllill; is oll'eclotl without any pi'uliininnov :uljusl wants. The same is ill 2:). ol course, when tho (lnvilzs zu'o swung onl'boni'ch the ncow sni'y znljnfihncnl' ol the parts being ellectecl lw'lorolmnil in rvmlinvw il the hoisting an l slowing of tho ionl. It nnshlso nwmnoil. in tin (lesvriplion oi" lhe opoz'zilion, that the Hl'tlll of tho lion-l ls Yong omliozu'il fizz-l, lnil ol)\"l0l1sl' l'hu how might lJL swung outl)U2ll'(l Iii-Q.

The operation ill launching has been (lenill'l fll Wll'll reapevli to lhe launching: of one liozll only, lllll if HVGIzll houfs are lo ho lzzonohul at tho sumo lime, llntlkl' (onl'rol li'oin lho loz'icl e lhe opcmlion is still the t"; 7 v V I I 5mm. As shown lll .lig. 10, each shall 0"" nmy be operated through suil'uhlo gears c" from a. shaft 1? and l'ho'shnlts 0" lo port and slim-hoard may he opoi'alml l() "'llll!, through git-urn ('1 from :1 common motor shaft 0" Hull?! control from the ln'hlgo or any other l 'illlll'lllll lll point. In lhis' 0:150 the (ll-wives loi' pm'inilling llw umllos to ('ollapse mill for l'(l(:l-1lll the hunt gi'ipos may also in opmnloll logvihor. llurook shall 5/" living opomloil lln-ough guns fifrom roar \vhivln ill:l (hemg enlxs N from :1

mm: r-onlwllinpj shafts 1: selves lw UPlil'lllOLl llinvugh Illll ll l common motor shaft k under control from the bridge. Provisions are made, as shown in Figs. 1 and 2, for the simultaneous casting off of the falls when the boat has been lowered away, As shown in' Fig. 1, each lower fall block b has a link 6 which passes through the boat deck so as to be engaged by a bolt 6 carried by a plate 6* suitably secured to the boat. The bolt 6 has'forme'd on its end, as shown in Fig. 2, a rack Z2 for engagement vii l1 a pinion I) which may be rotated to withdraw the bolt by a vertical hand shaft 6 provided with a suitable handle above the deck. The pinion I) also engages a rack b on a rod 6 which is adapted for longitudinal movement in suitable guides 5 under the thwarts. At its other end the rod 6 has a rack which engages a similar pinion 1), which in turn engages a similar bolt 7). The latter is adapted to engage the link 71 of the after fall. Thus by rotation of the vertical hand shaft b be h bolts 7/ and 7 are withdrawn simultaneously and the falls are therefore cast 03 simulta' neously.

It Will be understood that various changes in details of construction and arrangement may be made to suit different conditions of use without departing from the spirit of the invention which is not restricted to the precise construction and arrangement shown and described herein.

I claim as my invention:

1 A collapsible support for a ships boat comprising a frame hinged at its foot and hinged between its upper and lower ends, a chock at the upper end of the frame, a connection from the deck to the frame at its upper end to hold the upper end in position and a connection from the deck to the frame between its ends to prevent the frame from collapsing. 2. A collapsible support for a ships boat comprising a frame hinged at its foot and hinged between its upper and lower ends, a chock at the upper end of the frame, a link connected to the frame at its upper end and to the deck, and a link connected to the frame between its ends and detachably'connected to the deck.

3. A collapsible support for a ships boat comprising a frame hinged at its foot and "consisting of an upper member, a lower member and a hinge rod to which both mem bers are connected, the upper member consisting of a rigid chock and rods extending therefrom to the hinge rod and the lower member consisting of rods extending from the hinge rod to the deck and pivotally sea link pivotally connected cured to the deck, to the'upper'end of the frame and to the deck and a link pivotally connected to the hinge rod anddetachably connected to the deck.

4. A collapsible support for a ships boat comprising a frame'hinged at its foot and hinged between its upper and lower ends, a chock at the upper end of the frame, a link pivotally connected to the upper end of the frame and to the deck, a bracket secured to the deck, a link connected to the frame between its ends, detachable devices connecting the other end of the link to said bracket and means to detach the link from the bracket.

5. A collapsible support for a'ships boat comprising a frame hinged at its foot and hinged between its upper and lower ends, a chock at the upper end of the frame, a link pivotally connected to the upper end of the frame the deck, a link connected to the frame between its ends, a pin detachably connecting the link and the bracket and means to pull out said pin.

6. A collapsible support for a ships boat comprising a frame hinged at its foot and hinged between its upper and lowerlends, a chock at the upper end of the f*"me, a link pivotally connected to the upper end of the frame and to the deck, a bracket secured to the deck, a link connected to the frame between its ends, a pin detachably connecting the link and the bracket, a rock shaft, an arm on the rock shaft and a connection from the arm to the pin.

7. A series of collapsible supports for ships boats, links connected to said supports and detachably connected to the deck for maintaining said supports in operative position and means for detaching said links simultaneously. 8. A series of collapsible supports for ships boats, links connected to said supports and detachably connected to the deck for maintaining said supports in operative position, a shaft common to the series of supports and means actuated by the movement of the shaft to detach all of said links simultaneously.

9. A series of collapsible supports for ships boats comprising each a frame hinged at its foot and hinged between its upper and lower ends, a chock at the upper end of the frame and links connected to said supports and detachablv connected to the deck for maintaining the frame in operative position and means for detaching simultaneously all of said links.

10. A series of collapsible supports for ships boats comprising each a frame hinged at its foot and hinged between its upper and lower ends, with the upper end of-the frame and the deck and a link connected with the frame between its ends and detachably connected to the deck and means for releasing simultalilollSly all of said detachably connected lin s.

a link pivotally connected and to the deck, a bracket secured to with the upper end of thefil'rtun 'i and the 11. ii. series of er'illupsihle supports for ships bouts comprising each a i'rulue l'llilgtftll at its foot and hinged between it.- ;.u1 )per and lower ends, a link pivotolly COllllCLlOtl lower ends, :1 linl; connected with one oil. the frames at. its upper end and with the;

deck, and a link connected with said frame between its ends and detachahly connected I with the deck.

' l3. collapsible cradle for :1 ships hoot comprising a; plurality of frames eat-h hinged at its foot and hinged between its; upper and lower ends, a. link connecting the :t'romee at their upper ends, a link connecting the frames between their upper and lower ends, a link connected. with one of the frames at its upper end and with the deck, and a link connected with the other 'lrmoe at its upper end and detaehahly connected with the deck.

14. A collapsible cradle for 7.1 ships hoot comprising .1 plurality of irtunes ouch hinged at its foot and hinged between its upper and lower ends and having a. ehonlr t the upper end, a linl; connecting the upper ends of the frames. 1]. link ronrusrtinp the frames between their upper and lower ends, means connected to one of the in mes at its upper end to hold the upper end in position and ilelaeluihle menus count-tried to one of the frames between its 01' ls to pre vent the frame from collapsing.

The combination of a collapsible erudle for a ships bout, links ronueeled to the cradle at one end and detnehuljily eouneet ed to the (leek ll? the other end For maintaining the cradle in operative position. boat gripes deiarhahly connected to the deck and menus for releasing; simull'nneously the detachable links and the hoot gripes.

16. The combination of u coll-.ipsihle cradle for a shipi; boat. links connected to the erodle at one end end detach-ably eounected to the deck at the other end for maintaining the cradle in operative position, boat gripes, a sheik mounted on the deck and halving hooks to engra e the hoot gripes and means ciiinneeted with the shaft to release said deta'ehable liults whereby,

through movement or the shall, the hootgripes are released and the erudle is permitted. to collapse.

hoot

ii. The combination ol? :1 series of not lupsihle sug'u'iiiirts for whips heels. linlis eouneeted no the cradle at one end and deltuclz- :ilily' connected to thedeeh at the other end for maintaining the supports in operative position, detach: lilo l oul. gripes for the sowerul boats and n. oonuuon menus tor i'elering simultzineously oil of the cleteehelele links and the hoat gripes.

1.5 The. ooiubiuul iim. (it u series of collapsible supports for ships limits. linlts eon net-ted to the (*t'ztl'llt} at one end. and detachiihly oonneoted to the deck at the othereud for maintaining the sn morts in operative position; detnolmhle bout. gripes tor the several bouts and a shell. mounted on the drrk and eou'nuon to the entire ries and menus :uztuated hr the movement of the she'll: tor releasing siinult:ineously all of said detach able links and the bout gripes.

19. The coiilhinuliou with -21 boat. and falls, each lower fo l hloek having a depending link of bolts ilimllitetl humility on the bout and adopted to engage said links and 'lorlned, each with :i ruck. piuious enguging said ruelrs and lI10i\]1S l \Hf op reli g said pinions together to withdrew the bolts; simultaneously.

220. The mmihination with a. bout... dew its and falls, ouch lower full liloek having); :1 dependiu; link. oil bolts iuouuted momhly on the bout 21nd mlupted to engage said liiulrs ,uud {oi-med. mi -h with u rut-k, pinionr"; eu-

g'agil'ig mid reeks. :1 hnrlmving l'illfliS in on guggemeut with said piuions: and on operutilljl handle on one of said piiiious wlwrehy suicl {)llllfillS mil he operuted together and the bolls wiilulruu'n simultauemlsly.

31. The l'filll lllulll'il o. :1 pair oi devils, rmineeliom: between said i-lurits wlurelrr they urr operul wi totgirilu r. -.i munuully operated. 'u'oriu shel .nul ,gezir For actuating" one of said l'lftfll. will worm shui'l. living; iuovuhljr supported. and r. power operated shui'r :md intermediate gears for actuating;- lh=.- some devil. one oi the s: d internuiuliute genre he ing iuoruhly u'imu'uml, whereby suid durit may he :l iuuted either lnuni'iull or b) power.

$122. The eoiuliiuelion oil u gmir ol' devils, menus to :ieluute one of suid ilzivits. :in arm seeurml to our ol suid devils. u slotted quadrant arm si-uurml to the other of said devils und r. link luriugj; u. pirotiil, slotted eonne tion with lhe first iuuu il arm and u pivotal. shiilluhle eounrrtirm will; ihe quadrant :U'Ill.

The eomliijuution oil it pair of iluriiii, means to :urlunlrone oi? said duvits. an arm. seourodto one oi z-l lltl devils. a slotted (prud- I'lllit urn: secured in the otherolf said devils, it link liaii'iug ll pivotal. slotted connection with li lire numed nriu, a pivotal shiftohle connection \riih the quadrant uriu end a linlz having pirolul eouueetion with the extremity of one of the devils and u pivotal.

l, fl-"i simztggl ,cbnptection with file extrefiaifiy @f fiwf I egds of iqha slot being epiarged, alink slotted lagg imdinally at one and and having the extremity of the slot enlarged, 2L stud 011 one and he Eiagk having a shank adapted to Era-e35 in the narrow he quadmm a head t0 engage the 24:. The cambipation of a panof da-vifis, means to actuate 011,8 of said da-Vits an 1 secured to one of said davits, a filfllltrqfl L rant arm seemed to $116=9h53f 01 $2M (Ea-wits link having mevable pivot-mi mange-timiwfi ends of slat and a stud carried Wlih the sleitect. quadram iotted at its: 151 the first m and having a shank ii) tmvei 3%1 iaz'mw portion of the m.- in

l 510 m the signer} and witnessed m engagement with 33g;

portion or" thei? to engage the 6T.l-- 

